Management of Subconjunctival Hemorrhage
Subconjunctival hemorrhage requires no specific treatment in most cases and will resolve spontaneously within 1-2 weeks without intervention. The management focuses on patient reassurance and addressing any underlying causes.
Diagnostic Assessment
When evaluating a patient with subconjunctival hemorrhage, consider:
- Location and extent of hemorrhage (inferior areas are more commonly affected than superior areas) 1
- History of trauma or contact lens use (common causes in younger patients) 2
- Presence of systemic vascular diseases (hypertension, diabetes, arteriosclerosis - common in elderly) 2
- Medication history, particularly anticoagulants like warfarin 3
- Recurrence pattern (single episode vs. multiple episodes)
Management Algorithm
1. First-Line Management
- Patient reassurance that the condition is benign and self-limiting
- Artificial tears for mild irritation or discomfort
- Cold compresses for the first 24-48 hours to reduce discomfort
- Discontinue contact lens wear temporarily if applicable
2. Evaluation of Underlying Causes
- Check blood pressure particularly in older patients 4
- Review medications that may contribute to bleeding risk
- Consider bleeding disorders if recurrent or extensive hemorrhage
3. Special Considerations
For traumatic subconjunctival hemorrhage:
- Typically presents as localized hemorrhage in temporal areas 1
- Evaluate for other ocular injuries
- Smaller extent compared to non-traumatic causes 1
For recurrent or persistent subconjunctival hemorrhage:
- Workup for systemic hypertension
- Evaluation for bleeding disorders
- Assessment for systemic and ocular malignancies
- Review of medication side effects 2
When to Refer to an Ophthalmologist
Immediate referral is warranted if:
- Subconjunctival hemorrhage is associated with vision changes
- There is significant pain (beyond mild irritation)
- Hemorrhage is extensive or recurrent
- There is associated trauma with potential for other ocular injuries
Follow-up Recommendations
- Most cases require no follow-up if isolated and non-recurrent
- For recurrent cases, follow-up within 1-2 weeks to assess resolution and evaluate for underlying causes
- Patients on anticoagulants with recurrent hemorrhages should have their anticoagulation status evaluated 3
Patient Education
Advise patients that:
- Subconjunctival hemorrhage typically resolves within 1-2 weeks
- The blood may appear to spread before it resolves
- Color changes (from bright red to yellow) are normal during healing
- Avoid rubbing the eyes and activities that might increase ocular pressure
- Return if symptoms worsen or new symptoms develop
Pitfalls and Caveats
- Don't overlook subconjunctival hemorrhage as a potential first sign of serious systemic disorders like idiopathic thrombocytopenic purpura 5
- In patients with hypertension, diabetes, or hyperlipidemia, subconjunctival hemorrhage tends to be more extensive 1
- The event rate of subconjunctival hemorrhage in patients on warfarin is relatively low (0.35%), but medication changes in the preceding month may be a contributing factor 3
Remember that while subconjunctival hemorrhage appears dramatic and concerning to patients, it is typically benign and self-limiting, requiring only reassurance and monitoring in most cases.